Break-detector and warp-separator for looms.



i W. GLDEIELD. BREAK DETEGTGR AND WAR? SEPARATOR FOB, LOOMS. APPLIGATIOH rum) JULY 22. 191s.

lg' Patented ma. 29, 1914 WILLEAM OLIDFIELD, OF NEW BEDFORD, MASSCHSET'TS.

BREAK-EETECTQR AND WAB-SE-Flit EUR LQMS.'

maaier.

Specicstion of Letters le'tent.

)Patented Elie-c. E63, iid.

Apolieaton filed July 22, 1921.3. 'Serial 1% o. @0,54%

To all whom 'it may concern Be it known thatl, WILLIAM a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Brealr-Detec tors and Warp-Separatore for Looms, ofI

which theyiollowing is s full, clear, and exact description.

. notched bars Withiwhich dro sthat are suspended by the warp threa ls may engage when a warp thread breaks or becomes slack,

so that the drop maybe moved by the 'bar to engage with .an adjacent drop and pros` vide a space," thereby not only locating the break, but also providing a space of sch size that the drop may beA reached, rethreaded andthe broken warp joined. i.

My invention is not'directed toward providing a stop motion which is automatically eective when a warp thread breaks,jffbut is directed toward providing means for readily vand practically indicating the location-of a broken warpthread, and then separating by manual actuation thev Warp at the place where the break occurs, the separation of the warps providino' ample space for picking up the drop, three 'ng the-same and joining the warp..

"in practice, loom between beam. l

ln the-j accompanying drawings which illustrate the preferred form of. my invention that is designated by me as A break detector andwarp separator for looms.

Figurel is a view in outline illustrating a portion of the loom, and showing the position of the drops and' notchedbars, the bars being shown in section; Fig. 2 isa plan View showing my invention is applied to a the heddles andv the warp the notched bars and drops, the bars extend* ing:r diagonally to the frame; Fig. 3 is a de 'tail view showing'a notched bar and a supporting bracket; Fig. 4 is a front View of a thereon; -Fi 5 is a view of one of the brackets which OLorIELD,

the side frames of the loom, they supporting brackets for the notched bars,

portion of the sliding oar showing the drops y bracket 9 serves as a fulcriun for maintains the sliding bar; that when the end ofthe rod islifted out 110v Figs. 6 vand 7 'are detail views ci one of the brackets or bar supports; Fig. 8 is a plan viewV o fthe clip; Fig. 9is a view of the pin; and Figs. l0 and 1l are transverse sectional views of the bars, Fig. Si() being a preferred.

form and Fig. l1 a modilication.

Referring to the drawings l is theside frame of the loom, 2 the Warobeam, 3 the roller, 4i, 4, the rods, 5, 5, the heddles, 5, 6, the warp, 7 the lay, and 8 the breast beam, such parts being 'of ordinary construction.

.The sde frame of the loom has attached thereto -in any suitable manner, either by clips or bolts and washers, bar supports or brackets 9, 9', which are located preferably at a point below the plane of the roller. 3 and the rods 4, a convenient point of attach ment being above the Warp beam. s

The brackets 9 and. 9 have Vslots 1,0 in their'upper portions and the intermediate part 11 of the'bracket 9 between the slots and on their outer faces have attached theretol blocks 12, the blocks havingtherethrougli. horizontal openings for ins 13, of sulicient The lock pins project sl'ghtly so that they maybe taken out when it 'is desired to rc- Blf moveor slide to one side one of the'pins 13 to take out one orboth of the, notched bars .15. The notched sliding rods or bars'l are of a length sufficient to extend beyond the side pieces of the 'frame ofpthe loom and notches 16 formed in the same'v will be located beneath the warpthreadsfg.. The rods 15 at'one end are provided with` slots in 4whiclhwill lie the endsgof the pins 13, such pins limiting the-sliding movement of the rods aswell as retaining the samein the slots in the brackets 9. i

- The construction ofsthe brackets and the rodsl is such that the rods maybe slidin their supports and upward. movementaof the slotted ends Aof the rods which are'engaged by the pins 13 will be prevented. When it is desired to place needles upon'the rod 15, the 21 handles 11 on that-end or the rod 'which engages with. the bracket 9 is -raised'and the pin 13 that is carried by the block-11 of the the rod so .of s.,

to string the drops thereon. When the fabric that is fabric is ne, I use two similar bars supported by a single bracket, and I am -not limi'tedto the exact position of the bars upon the loom, andit will be noted that when two bars or rods are used, 'they willbe maintained in parallel relation, one totheA other, andfseparated from each `other a distance' equalfto one-halt the width of the needles 16.v

The'notched slidable bar or bars 15 are 'each' provided on 'their'. upper `'edge with "teethlfpf appropriate c onliguration and a preferred form is'to cut 'two slots-.18, -18 which .converge upward, and .to remove a.

part ofthe upper surface of the bar which will l'eave a raisedy portion 16 between the slots" or-converging slots 18 with inclined end walls, as will more fully appear Aby ref erence-to-Fig. 4 'of'the drawings. The slots oirece'sse's 18 are of a width which will only slightly embeed'flzhe thickness of. theI needles 3"'5V slidfrom/leftto right, as such engagement.

'I 162 The rods 15 in their` preferred form are ltapan-ed ini-'cross section, the thickest portion thereof`= ybeingl located `farthest "from -the teeth: aS/Wu bassen by reference toFg. 10 offthey drawings, or the same object may be attainedlfbyconstructing ythe bars' so that,

the'yfwill be' co:ncave` on both' sides.; f They purpose of this construction of the bar 15 isy tr-preventthe notches' or teeth 17 engaging withfthews'uspended drops. when the bar is o-lthebr with the suspended drops would belobjectionable andw'ould be; likely to' misleadtheloperatorfin locating. the break., .i

*4736i stated, are strung upontherods15and these y as'fs'teelforhard brass. The upper ends of this 'may be vconsidered a vpreferred arrangethe 4drops have therethrough anneye 19 and at'l'aws'ui-table point below the eye, there is anfelngated opening 20.`l The eye 19 may fassedthrough this eye. The width of the s'lotjwill exceed the width of the bar 15 so that, thedropsil mayy be easily strung .50 thereon.' 1

;Wh'eI'i-fthe bars'or'notchedrods are mam-` nient"`where there area large number of' warpfthre'ads as in weaving fine fabrlcs, but for heavier material, therods maybe at ,A rightlaii-gles tol the warp,ian d the dropsbent e5 drops that .are IsuspendedA 'and needlesjare-made'gzlup from thin sheet metal,

be 'round oroval and the warp thread is llhefslets at v"the ends "of thejfba'rs 15;l have' a length su'iicientto admit of l'a longitudinal being woven -is v coarse, a; single bar will suliice,bt when the movement of the bar of an inch and onehalf'whichI will give an opening that is suiiicient not onl to practically llocate the broken warp an Apick up the ends but rethread the drop.

' In operation, whena single rod liislused:

and a warp thread is broken, the drop will fall and maybe readily seen in the dropping and it will either rest upon the higher portion of the twisted bar or between two suchy portions. By 'manually moving the rod the drops that are suspended by .the'l'warp along, the bar without binding, until movejment of the bar is'arrestedby the end of the,l

slot.' contactingl withy the `pin that :'mtersects4 the slot. The drops when resting upon aber and the bar 'being moved longitudinally'will' effect .an inclination of thel drop" and thus provide a larger space through which to pick up the warp and vunite the ends 'theres of. Itwill also be noted that the eye'of the I drop through which 'the warp is 'passed is at its upper end iu'id above`4 the slot through' which thebar passes. When two notched rods or bars are 'used "the drops when'a thread'breaks will'fall andengag e a-notch" infoe of the bars, land when v suchbai" is'y moved longitudiinally, the dropwhich fover- 'lapsthe drop onan adjacent bar will engage theA suspended drop 'and thus' 'a fallen drop will not only becarried which it is strung'. but wil upoi the adjacent bar.

Thisbr'eak detectorand warp separator is adapted for use 'with different types of looms, and may be used in conjunctionwith the-"bar upon alsomove the aref strung ico mechanical stop motions for power looinsl in which is used a` normally stationary notched bar and a reciprocative notched bar-that are locked together by the Afalling of a drop, so' that one of the Abars will actuate anappropriate stop motion.

Iclaim ,l y

f lfIn va warpthread'detector for looms, vertically slotted brackets'maintained bythe frame of the lom`;` one ofsjaid brackets carrying laterally projecting "pins,- a bari-.provided with .aslot through whic'hg ,thefpin carried hby.' the bracket is passed v"said bar having recesses 'with oppositely inclined ends, and drops having'eyes through their uppermost ends and slots b'elcwthefeyeslfor thepassage'through the slots .o'f the bars. flf" 2. In a break vdetector andmanually op-i erated warp separator forfjloonis,' a `slidable bar provided with notches which at their ends opennended yand upwardlycon? vergng'rece'sses, drops mounted tlieba'r which 'are adapte'dto assume an inclined pol las ite 1,

. -Warp .threads ofthe loom.

sltion when supported by the bar and when said bar is moved longitudinally. y l

3f. In a warp thread detector for vertically slotted brackets associated With aframe of'a loom, one of the brackets being provided with a laterally projectinglnember, a detector bar provided at one end with a slot through which the member carried 'by the bracket is passed, said detector bar having -recesses With oppositely inclined ends converging upwardly, and drops mounted upon the bar and held normally out of engagement with the recesses by the 5L.. ln a 'break detector for the Warp threads of looms, opposite side bars of the frame of the loom and positioned out of transverse alinement one with the other, parallelbars associated with the brackets to extend diagonally across the frame o't' the loom to be main-v tained at an angle with the warp threads and drops associated with the bars.

5. In a brealcdetector and manually opera ted Warp separator, parallel maintained slidable bars having drop engaging notches, the end walls of the notches converging upward to pro-vide the bars Withinclined drop engaging portions,\varp maintained drops which are adapted when maintained solely by engagement by a bar and when 'moved y with the bar to assume an inclined position looms,

brackets maintained by with respect to the bar With Whichl it engages.v

movable Warp detector bar for looms', having a notched portion with whichv drops may engage, the notches having a part located below thev plane of the upper surface e. aA manually hasta or, longitudinally 35 of 'the barl and open ended downward di- ,40

verging recesses which extend beyond the part of the notch that is located below the plane of the upper surface of the bar, and drops provided at their upper ends "with 'leyes and below the eyes with slots for the 45 passage of the detector bar.-

7, In a Warp thread detector for looms, a notched detector bar associated with a frame of the loom and provided with recesses; the bottomv of the major portion of each recess being parallel to the edge of the detector bar, said recesses having end portions which are oppositely inclined to converge upwardly and extend below 'the bottom of the aforesaid major portion 6i the recesses, and dropsl of a thickness not exceeding the Width of the deeper 'portions of the recesses which are' adjacent to the 4lflclined ends thereof;

ln witness vfhereoi I llave hereunto set my hand and seal this 17th da7 of July, 1913. WILLAM OLDFIELD. llVitllesses: y V

JOHN C; rilmrlnnn, EDWARD Nonnis. 

